122851013 has 4 divisors (see below), whose sum is σ = 122912460. Its totient is φ = 122789568.

The previous prime is 122850977. The next prime is 122851081. The reversal of 122851013 is 310158221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68194564 + 54656449 = 8258^2 + 7393^2 .

It is a cyclic number.

It is not a de Polignac number, because 122851013 - 2¹⁰ = 122849989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122851013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122851213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27620 + ... + 31757.

It is an arithmetic number, because the mean of its divisors is an integer number (30728115).

Almost surely, 2^122851013 is an apocalyptic number.

It is an amenable number.

122851013 is a deficient number, since it is larger than the sum of its proper divisors (61447).

122851013 is an equidigital number, since it uses as much as digits as its factorization.

122851013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61446.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 122851013 is about 11083.8176184923. The cubic root of 122851013 is about 497.1181052790.

The spelling of 122851013 in words is "one hundred twenty-two million, eight hundred fifty-one thousand, thirteen".